src/qt/bitcoingui.cpp

   1 /*
   2  * Qt4 bitcoin GUI.
   3  *
   4  * W.J. van der Laan 20011-2012
   5  * The Bitcoin Developers 20011-2012
   6  */
   7 #include "bitcoingui.h"
   8 #include "transactiontablemodel.h"
   9 #include "addressbookpage.h"
  10 #include "sendcoinsdialog.h"
  11 #include "messagepage.h"
  12 #include "optionsdialog.h"
  13 #include "aboutdialog.h"
  14 #include "clientmodel.h"
  15 #include "walletmodel.h"
  16 #include "editaddressdialog.h"
  17 #include "optionsmodel.h"
  18 #include "transactiondescdialog.h"
  19 #include "addresstablemodel.h"
  20 #include "transactionview.h"
  21 #include "overviewpage.h"
  22 #include "bitcoinunits.h"
  23 #include "guiconstants.h"
  24 #include "askpassphrasedialog.h"
  25 #include "notificator.h"
  26 #include "guiutil.h"
  27
  28 #ifdef Q_WS_MAC
  29 #include "macdockiconhandler.h"
  30 #endif
  31
  32 #include <QApplication>
  33 #include <QMainWindow>
  34 #include <QMenuBar>
  35 #include <QMenu>
  36 #include <QIcon>
  37 #include <QTabWidget>
  38 #include <QVBoxLayout>
  39 #include <QToolBar>
  40 #include <QStatusBar>
  41 #include <QLabel>
  42 #include <QLineEdit>
  43 #include <QPushButton>
  44 #include <QLocale>
  45 #include <QMessageBox>
  46 #include <QProgressBar>
  47 #include <QStackedWidget>
  48 #include <QDateTime>
  49 #include <QMovie>
  50 #include <QFileDialog>
  51 #include <QDesktopServices>
  52 #include <QTimer>
  53
  54 #include <QDragEnterEvent>
  55 #include <QUrl>
  56
  57 #include <iostream>
  58
  59 BitcoinGUI::BitcoinGUI(QWidget *parent):
  60     QMainWindow(parent),
  61     clientModel(0),
  62     walletModel(0),
  63     encryptWalletAction(0),
  64     changePassphraseAction(0),
  65     aboutQtAction(0),
  66     trayIcon(0),
  67     notificator(0)
  68 {
  69     resize(850, 550);
  70     setWindowTitle(tr("Bitcoin Wallet"));
  71 #ifndef Q_WS_MAC
  72     setWindowIcon(QIcon(":icons/bitcoin"));
  73 #else
  74     setUnifiedTitleAndToolBarOnMac(true);
  75     QApplication::setAttribute(Qt::AA_DontShowIconsInMenus);
  76 #endif
  77     // Accept D&D of URIs
  78     setAcceptDrops(true);
  79
  80     // Create actions for the toolbar, menu bar and tray/dock icon
  81     createActions();
  82
  83     // Create application menu bar
  84     createMenuBar();
  85
  86     // Create the toolbars
  87     createToolBars();
  88
  89     // Create the tray icon (or setup the dock icon)
  90     createTrayIcon();
  91
  92     // Create tabs
  93     overviewPage = new OverviewPage();
  94
  95     transactionsPage = new QWidget(this);
  96     QVBoxLayout *vbox = new QVBoxLayout();
  97     transactionView = new TransactionView(this);
  98     vbox->addWidget(transactionView);
  99     transactionsPage->setLayout(vbox);
 100
 101     addressBookPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::SendingTab);
 102
 103     receiveCoinsPage = new AddressBookPage(AddressBookPage::ForEditing, AddressBookPage::ReceivingTab);
 104
 105     sendCoinsPage = new SendCoinsDialog(this);
 106
 107     messagePage = new MessagePage(this);
 108
 109     centralWidget = new QStackedWidget(this);
 110     centralWidget->addWidget(overviewPage);
 111     centralWidget->addWidget(transactionsPage);
 112     centralWidget->addWidget(addressBookPage);
 113     centralWidget->addWidget(receiveCoinsPage);
 114     centralWidget->addWidget(sendCoinsPage);
 115 #ifdef FIRST_CLASS_MESSAGING
 116     centralWidget->addWidget(messagePage);
 117 #endif
 118     setCentralWidget(centralWidget);
 119
 120     // Create status bar
 121     statusBar();
 122
 123     // Status bar notification icons
 124     QFrame *frameBlocks = new QFrame();
 125     frameBlocks->setContentsMargins(0,0,0,0);
 126     frameBlocks->setMinimumWidth(56);
 127     frameBlocks->setMaximumWidth(56);
 128     QHBoxLayout *frameBlocksLayout = new QHBoxLayout(frameBlocks);
 129     frameBlocksLayout->setContentsMargins(3,0,3,0);
 130     frameBlocksLayout->setSpacing(3);
 131     labelEncryptionIcon = new QLabel();
 132     labelConnectionsIcon = new QLabel();
 133     labelBlocksIcon = new QLabel();
 134     frameBlocksLayout->addStretch();
 135     frameBlocksLayout->addWidget(labelEncryptionIcon);
 136     frameBlocksLayout->addStretch();
 137     frameBlocksLayout->addWidget(labelConnectionsIcon);
 138     frameBlocksLayout->addStretch();
 139     frameBlocksLayout->addWidget(labelBlocksIcon);
 140     frameBlocksLayout->addStretch();
 141
 142     // Progress bar and label for blocks download
 143     progressBarLabel = new QLabel();
 144     progressBarLabel->setVisible(false);
 145     progressBar = new QProgressBar();
 146     progressBar->setAlignment(Qt::AlignCenter);
 147     progressBar->setVisible(false);
 148
 149     statusBar()->addWidget(progressBarLabel);
 150     statusBar()->addWidget(progressBar);
 151     statusBar()->addPermanentWidget(frameBlocks);
 152
 153     syncIconMovie = new QMovie(":/movies/update_spinner", "mng", this);
 154
 155     // Clicking on a transaction on the overview page simply sends you to transaction history page
 156     connect(overviewPage, SIGNAL(transactionClicked(QModelIndex)), this, SLOT(gotoHistoryPage()));
 157
 158     // Doubleclicking on a transaction on the transaction history page shows details
 159     connect(transactionView, SIGNAL(doubleClicked(QModelIndex)), transactionView, SLOT(showDetails()));
 160
 161     gotoOverviewPage();
 162 }
 163
 164 BitcoinGUI::~BitcoinGUI()
 165 {
 166     if(trayIcon) // Hide tray icon, as deleting will let it linger until quit (on Ubuntu)
 167         trayIcon->hide();
 168 #ifdef Q_WS_MAC
 169     delete appMenuBar;
 170 #endif
 171 }
 172
 173 void BitcoinGUI::createActions()
 174 {
 175     QActionGroup *tabGroup = new QActionGroup(this);
 176
 177     overviewAction = new QAction(QIcon(":/icons/overview"), tr("&Overview"), this);
 178     overviewAction->setToolTip(tr("Show general overview of wallet"));
 179     overviewAction->setCheckable(true);
 180     overviewAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_1));
 181     tabGroup->addAction(overviewAction);
 182
 183     historyAction = new QAction(QIcon(":/icons/history"), tr("&Transactions"), this);
 184     historyAction->setToolTip(tr("Browse transaction history"));
 185     historyAction->setCheckable(true);
 186     historyAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_4));
 187     tabGroup->addAction(historyAction);
 188
 189     addressBookAction = new QAction(QIcon(":/icons/address-book"), tr("&Address Book"), this);
 190     addressBookAction->setToolTip(tr("Edit the list of stored addresses and labels"));
 191     addressBookAction->setCheckable(true);
 192     addressBookAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_5));
 193     tabGroup->addAction(addressBookAction);
 194
 195     receiveCoinsAction = new QAction(QIcon(":/icons/receiving_addresses"), tr("&Receive coins"), this);
 196     receiveCoinsAction->setToolTip(tr("Show the list of addresses for receiving payments"));
 197     receiveCoinsAction->setCheckable(true);
 198     receiveCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_3));
 199     tabGroup->addAction(receiveCoinsAction);
 200
 201     sendCoinsAction = new QAction(QIcon(":/icons/send"), tr("&Send coins"), this);
 202     sendCoinsAction->setToolTip(tr("Send coins to a bitcoin address"));
 203     sendCoinsAction->setCheckable(true);
 204     sendCoinsAction->setShortcut(QKeySequence(Qt::ALT + Qt::Key_2));
 205     tabGroup->addAction(sendCoinsAction);
 206
 207     messageAction = new QAction(QIcon(":/icons/edit"), tr("Sign &message"), this);
 208     messageAction->setToolTip(tr("Prove you control an address"));
 209 #ifdef FIRST_CLASS_MESSAGING
 210     messageAction->setCheckable(true);
 211 #endif
 212     tabGroup->addAction(messageAction);
 213
 214     connect(overviewAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 215     connect(overviewAction, SIGNAL(triggered()), this, SLOT(gotoOverviewPage()));
 216     connect(historyAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 217     connect(historyAction, SIGNAL(triggered()), this, SLOT(gotoHistoryPage()));
 218     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 219     connect(addressBookAction, SIGNAL(triggered()), this, SLOT(gotoAddressBookPage()));
 220     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 221     connect(receiveCoinsAction, SIGNAL(triggered()), this, SLOT(gotoReceiveCoinsPage()));
 222     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 223     connect(sendCoinsAction, SIGNAL(triggered()), this, SLOT(gotoSendCoinsPage()));
 224     connect(messageAction, SIGNAL(triggered()), this, SLOT(showNormalIfMinimized()));
 225     connect(messageAction, SIGNAL(triggered()), this, SLOT(gotoMessagePage()));
 226
 227     quitAction = new QAction(QIcon(":/icons/quit"), tr("E&xit"), this);
 228     quitAction->setToolTip(tr("Quit application"));
 229     quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
 230     quitAction->setMenuRole(QAction::QuitRole);
 231     aboutAction = new QAction(QIcon(":/icons/bitcoin"), tr("&About %1").arg(qApp->applicationName()), this);
 232     aboutAction->setToolTip(tr("Show information about Bitcoin"));
 233     aboutAction->setMenuRole(QAction::AboutRole);
 234     aboutQtAction = new QAction(tr("About &Qt"), this);
 235     aboutQtAction->setToolTip(tr("Show information about Qt"));
 236     aboutQtAction->setMenuRole(QAction::AboutQtRole);
 237     optionsAction = new QAction(QIcon(":/icons/options"), tr("&Options..."), this);
 238     optionsAction->setToolTip(tr("Modify configuration options for bitcoin"));
 239     optionsAction->setMenuRole(QAction::PreferencesRole);
 240     toggleHideAction = new QAction(QIcon(":/icons/bitcoin"), tr("Show/Hide &Bitcoin"), this);
 241     toggleHideAction->setToolTip(tr("Show or hide the Bitcoin window"));
 242     exportAction = new QAction(QIcon(":/icons/export"), tr("&Export..."), this);
 243     exportAction->setToolTip(tr("Export the data in the current tab to a file"));
 244     encryptWalletAction = new QAction(QIcon(":/icons/lock_closed"), tr("&Encrypt Wallet"), this);
 245     encryptWalletAction->setToolTip(tr("Encrypt or decrypt wallet"));
 246     encryptWalletAction->setCheckable(true);
 247     backupWalletAction = new QAction(QIcon(":/icons/filesave"), tr("&Backup Wallet"), this);
 248     backupWalletAction->setToolTip(tr("Backup wallet to another location"));
 249     changePassphraseAction = new QAction(QIcon(":/icons/key"), tr("&Change Passphrase"), this);
 250     changePassphraseAction->setToolTip(tr("Change the passphrase used for wallet encryption"));
 251
 252     connect(quitAction, SIGNAL(triggered()), qApp, SLOT(quit()));
 253     connect(optionsAction, SIGNAL(triggered()), this, SLOT(optionsClicked()));
 254     connect(aboutAction, SIGNAL(triggered()), this, SLOT(aboutClicked()));
 255     connect(aboutQtAction, SIGNAL(triggered()), qApp, SLOT(aboutQt()));
 256     connect(toggleHideAction, SIGNAL(triggered()), this, SLOT(toggleHidden()));
 257     connect(encryptWalletAction, SIGNAL(triggered(bool)), this, SLOT(encryptWallet(bool)));
 258     connect(backupWalletAction, SIGNAL(triggered()), this, SLOT(backupWallet()));
 259     connect(changePassphraseAction, SIGNAL(triggered()), this, SLOT(changePassphrase()));
 260 }
 261
 262 void BitcoinGUI::createMenuBar()
 263 {
 264 #ifdef Q_WS_MAC
 265     // Create a decoupled menu bar on Mac which stays even if the window is closed
 266     appMenuBar = new QMenuBar();
 267 #else
 268     // Get the main window's menu bar on other platforms
 269     appMenuBar = menuBar();
 270 #endif
 271
 272     // Configure the menus
 273     QMenu *file = appMenuBar->addMenu(tr("&File"));
 274     file->addAction(backupWalletAction);
 275     file->addAction(exportAction);
 276 #ifndef FIRST_CLASS_MESSAGING
 277     file->addAction(messageAction);
 278 #endif
 279     file->addSeparator();
 280     file->addAction(quitAction);
 281
 282     QMenu *settings = appMenuBar->addMenu(tr("&Settings"));
 283     settings->addAction(encryptWalletAction);
 284     settings->addAction(changePassphraseAction);
 285     settings->addSeparator();
 286     settings->addAction(optionsAction);
 287
 288     QMenu *help = appMenuBar->addMenu(tr("&Help"));
 289     help->addAction(aboutAction);
 290     help->addAction(aboutQtAction);
 291 }
 292
 293 void BitcoinGUI::createToolBars()
 294 {
 295     QToolBar *toolbar = addToolBar(tr("Tabs toolbar"));
 296     toolbar->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 297     toolbar->addAction(overviewAction);
 298     toolbar->addAction(sendCoinsAction);
 299     toolbar->addAction(receiveCoinsAction);
 300     toolbar->addAction(historyAction);
 301     toolbar->addAction(addressBookAction);
 302 #ifdef FIRST_CLASS_MESSAGING
 303     toolbar->addAction(messageAction);
 304 #endif
 305
 306     QToolBar *toolbar2 = addToolBar(tr("Actions toolbar"));
 307     toolbar2->setToolButtonStyle(Qt::ToolButtonTextBesideIcon);
 308     toolbar2->addAction(exportAction);
 309 }
 310
 311 void BitcoinGUI::setClientModel(ClientModel *clientModel)
 312 {
 313     this->clientModel = clientModel;
 314     if(clientModel)
 315     {
 316         if(clientModel->isTestNet())
 317         {
 318             QString title_testnet = windowTitle() + QString(" ") + tr("[testnet]");
 319             setWindowTitle(title_testnet);
 320 #ifndef Q_WS_MAC
 321             setWindowIcon(QIcon(":icons/bitcoin_testnet"));
 322 #else
 323             MacDockIconHandler::instance()->setIcon(QIcon(":icons/bitcoin_testnet"));
 324 #endif
 325             if(trayIcon)
 326             {
 327                 trayIcon->setToolTip(title_testnet);
 328                 trayIcon->setIcon(QIcon(":/icons/toolbar_testnet"));
 329             }
 330         }
 331
 332         // Keep up to date with client
 333         setNumConnections(clientModel->getNumConnections());
 334         connect(clientModel, SIGNAL(numConnectionsChanged(int)), this, SLOT(setNumConnections(int)));
 335
 336         setNumBlocks(clientModel->getNumBlocks());
 337         connect(clientModel, SIGNAL(numBlocksChanged(int)), this, SLOT(setNumBlocks(int)));
 338
 339         // Report errors from network/worker thread
 340         connect(clientModel, SIGNAL(error(QString,QString, bool)), this, SLOT(error(QString,QString,bool)));
 341     }
 342 }
 343
 344 void BitcoinGUI::setWalletModel(WalletModel *walletModel)
 345 {
 346     this->walletModel = walletModel;
 347     if(walletModel)
 348     {
 349         // Report errors from wallet thread
 350         connect(walletModel, SIGNAL(error(QString,QString,bool)), this, SLOT(error(QString,QString,bool)));
 351
 352         // Put transaction list in tabs
 353         transactionView->setModel(walletModel);
 354
 355         overviewPage->setModel(walletModel);
 356         addressBookPage->setModel(walletModel->getAddressTableModel());
 357         receiveCoinsPage->setModel(walletModel->getAddressTableModel());
 358         sendCoinsPage->setModel(walletModel);
 359         messagePage->setModel(walletModel);
 360
 361         setEncryptionStatus(walletModel->getEncryptionStatus());
 362         connect(walletModel, SIGNAL(encryptionStatusChanged(int)), this, SLOT(setEncryptionStatus(int)));
 363
 364         // Balloon popup for new transaction
 365         connect(walletModel->getTransactionTableModel(), SIGNAL(rowsInserted(QModelIndex,int,int)),
 366                 this, SLOT(incomingTransaction(QModelIndex,int,int)));
 367
 368         // Ask for passphrase if needed
 369         connect(walletModel, SIGNAL(requireUnlock()), this, SLOT(unlockWallet()));
 370     }
 371 }
 372
 373 void BitcoinGUI::createTrayIcon()
 374 {
 375     QMenu *trayIconMenu;
 376 #ifndef Q_WS_MAC
 377     trayIcon = new QSystemTrayIcon(this);
 378     trayIconMenu = new QMenu(this);
 379     trayIcon->setContextMenu(trayIconMenu);
 380     trayIcon->setToolTip(tr("Bitcoin client"));
 381     trayIcon->setIcon(QIcon(":/icons/toolbar"));
 382     connect(trayIcon, SIGNAL(activated(QSystemTrayIcon::ActivationReason)),
 383             this, SLOT(trayIconActivated(QSystemTrayIcon::ActivationReason)));
 384     trayIcon->show();
 385 #else
 386     // Note: On Mac, the dock icon is used to provide the tray's functionality.
 387     MacDockIconHandler *dockIconHandler = MacDockIconHandler::instance();
 388     connect(dockIconHandler, SIGNAL(dockIconClicked()), toggleHideAction, SLOT(trigger()));
 389     trayIconMenu = dockIconHandler->dockMenu();
 390 #endif
 391
 392     // Configuration of the tray icon (or dock icon) icon menu
 393     trayIconMenu->addAction(toggleHideAction);
 394     trayIconMenu->addSeparator();
 395     trayIconMenu->addAction(messageAction);
 396 #ifndef FIRST_CLASS_MESSAGING
 397     trayIconMenu->addSeparator();
 398 #endif
 399     trayIconMenu->addAction(receiveCoinsAction);
 400     trayIconMenu->addAction(sendCoinsAction);
 401     trayIconMenu->addSeparator();
 402     trayIconMenu->addAction(optionsAction);
 403 #ifndef Q_WS_MAC // This is built-in on Mac
 404     trayIconMenu->addSeparator();
 405     trayIconMenu->addAction(quitAction);
 406 #endif
 407
 408     notificator = new Notificator(tr("bitcoin-qt"), trayIcon);
 409 }
 410
 411 #ifndef Q_WS_MAC
 412 void BitcoinGUI::trayIconActivated(QSystemTrayIcon::ActivationReason reason)
 413 {
 414     if(reason == QSystemTrayIcon::Trigger)
 415     {
 416         // Click on system tray icon triggers "show/hide bitcoin"
 417         toggleHideAction->trigger();
 418     }
 419 }
 420 #endif
 421
 422 void BitcoinGUI::toggleHidden()
 423 {
 424     // activateWindow() (sometimes) helps with keyboard focus on Windows
 425     if (isHidden())
 426     {
 427         show();
 428         activateWindow();
 429     }
 430     else if (isMinimized())
 431     {
 432         showNormal();
 433         activateWindow();
 434     }
 435     else if (GUIUtil::isObscured(this))
 436     {
 437         raise();
 438         activateWindow();
 439     }
 440     else
 441         hide();
 442 }
 443
 444 void BitcoinGUI::optionsClicked()
 445 {
 446     if(!clientModel || !clientModel->getOptionsModel())
 447         return;
 448     OptionsDialog dlg;
 449     dlg.setModel(clientModel->getOptionsModel());
 450     dlg.exec();
 451 }
 452
 453 void BitcoinGUI::aboutClicked()
 454 {
 455     AboutDialog dlg;
 456     dlg.setModel(clientModel);
 457     dlg.exec();
 458 }
 459
 460 void BitcoinGUI::setNumConnections(int count)
 461 {
 462     QString icon;
 463     switch(count)
 464     {
 465     case 0: icon = ":/icons/connect_0"; break;
 466     case 1: case 2: case 3: icon = ":/icons/connect_1"; break;
 467     case 4: case 5: case 6: icon = ":/icons/connect_2"; break;
 468     case 7: case 8: case 9: icon = ":/icons/connect_3"; break;
 469     default: icon = ":/icons/connect_4"; break;
 470     }
 471     labelConnectionsIcon->setPixmap(QIcon(icon).pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 472     labelConnectionsIcon->setToolTip(tr("%n active connection(s) to Bitcoin network", "", count));
 473 }
 474
 475 void BitcoinGUI::setNumBlocks(int count)
 476 {
 477     // don't show / hide progressBar and it's label if we have no connection(s) to the network
 478     if (!clientModel || clientModel->getNumConnections() == 0)
 479     {
 480         progressBarLabel->setVisible(false);
 481         progressBar->setVisible(false);
 482
 483         return;
 484     }
 485
 486     int nTotalBlocks = clientModel->getNumBlocksOfPeers();
 487     QString tooltip;
 488
 489     if(count < nTotalBlocks)
 490     {
 491         int nRemainingBlocks = nTotalBlocks - count;
 492         float nPercentageDone = count / (nTotalBlocks * 0.01f);
 493
 494         if (clientModel->getStatusBarWarnings() == "")
 495         {
 496             progressBarLabel->setText(tr("Synchronizing with network..."));
 497             progressBarLabel->setVisible(true);
 498             progressBar->setFormat(tr("~%n block(s) remaining", "", nRemainingBlocks));
 499             progressBar->setMaximum(nTotalBlocks);
 500             progressBar->setValue(count);
 501             progressBar->setVisible(true);
 502         }
 503         else
 504         {
 505             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 506             progressBarLabel->setVisible(true);
 507             progressBar->setVisible(false);
 508         }
 509         tooltip = tr("Downloaded %1 of %2 blocks of transaction history (%3% done).").arg(count).arg(nTotalBlocks).arg(nPercentageDone, 0, 'f', 2);
 510     }
 511     else
 512     {
 513         if (clientModel->getStatusBarWarnings() == "")
 514             progressBarLabel->setVisible(false);
 515         else
 516         {
 517             progressBarLabel->setText(clientModel->getStatusBarWarnings());
 518             progressBarLabel->setVisible(true);
 519         }
 520         progressBar->setVisible(false);
 521         tooltip = tr("Downloaded %1 blocks of transaction history.").arg(count);
 522     }
 523
 524     QDateTime now = QDateTime::currentDateTime();
 525     QDateTime lastBlockDate = clientModel->getLastBlockDate();
 526     int secs = lastBlockDate.secsTo(now);
 527     QString text;
 528
 529     // Represent time from last generated block in human readable text
 530     if(secs <= 0)
 531     {
 532         // Fully up to date. Leave text empty.
 533     }
 534     else if(secs < 60)
 535     {
 536         text = tr("%n second(s) ago","",secs);
 537     }
 538     else if(secs < 60*60)
 539     {
 540         text = tr("%n minute(s) ago","",secs/60);
 541     }
 542     else if(secs < 24*60*60)
 543     {
 544         text = tr("%n hour(s) ago","",secs/(60*60));
 545     }
 546     else
 547     {
 548         text = tr("%n day(s) ago","",secs/(60*60*24));
 549     }
 550
 551     // Set icon state: spinning if catching up, tick otherwise
 552     if(secs < 90*60 && count >= nTotalBlocks)
 553     {
 554         tooltip = tr("Up to date") + QString(".\n") + tooltip;
 555         labelBlocksIcon->setPixmap(QIcon(":/icons/synced").pixmap(STATUSBAR_ICONSIZE, STATUSBAR_ICONSIZE));
 556     }
 557     else
 558     {
 559         tooltip = tr("Catching up...") + QString("\n") + tooltip;
 560         labelBlocksIcon->setMovie(syncIconMovie);
 561         syncIconMovie->start();
 562     }
 563
 564     if(!text.isEmpty())
 565     {
 566         tooltip += QString("\n");
 567         tooltip += tr("Last received block was generated %1.").arg(text);
 568     }
 569
 570     labelBlocksIcon->setToolTip(tooltip);
 571     progressBarLabel->setToolTip(tooltip);
 572     progressBar->setToolTip(tooltip);
 573 }
 574
 575 void BitcoinGUI::error(const QString &title, const QString &message, bool modal)
 576 {
 577     // Report errors from network/worker thread
 578     if(modal)
 579     {
 580         QMessageBox::critical(this, title, message, QMessageBox::Ok, QMessageBox::Ok);
 581     } else {
 582         notificator->notify(Notificator::Critical, title, message);
 583     }
 584 }
 585
 586 void BitcoinGUI::changeEvent(QEvent *e)
 587 {
 588     QMainWindow::changeEvent(e);
 589 #ifndef Q_WS_MAC // Ignored on Mac
 590     if(e->type() == QEvent::WindowStateChange)
 591     {
 592         if(clientModel && clientModel->getOptionsModel()->getMinimizeToTray())
 593         {
 594             QWindowStateChangeEvent *wsevt = static_cast<QWindowStateChangeEvent*>(e);
 595             if(!(wsevt->oldState() & Qt::WindowMinimized) && isMinimized())
 596             {
 597                 QTimer::singleShot(0, this, SLOT(hide()));
 598                 e->ignore();
 599             }
 600         }
 601     }
 602 #endif
 603 }
 604
 605 void BitcoinGUI::closeEvent(QCloseEvent *event)
 606 {
 607     if(clientModel)
 608     {
 609 #ifndef Q_WS_MAC // Ignored on Mac
 610         if(!clientModel->getOptionsModel()->getMinimizeToTray() &&
 611            !clientModel->getOptionsModel()->getMinimizeOnClose())
 612         {
 613             qApp->quit();
 614         }
 615 #endif
 616     }
 617     QMainWindow::closeEvent(event);
 618 }
 619
 620 void BitcoinGUI::askFee(qint64 nFeeRequired, bool *payFee)
 621 {
 622     QString strMessage =
 623         tr("This transaction is over the size limit.  You can still send it for a fee of %1, "
 624           "which goes to the nodes that process your transaction and helps to support the network.  "
 625           "Do you want to pay the fee?").arg(
 626                 BitcoinUnits::formatWithUnit(BitcoinUnits::BTC, nFeeRequired));
 627     QMessageBox::StandardButton retval = QMessageBox::question(
 628           this, tr("Sending..."), strMessage,
 629           QMessageBox::Yes|QMessageBox::Cancel, QMessageBox::Yes);
 630     *payFee = (retval == QMessageBox::Yes);
 631 }
 632
 633 void BitcoinGUI::incomingTransaction(const QModelIndex & parent, int start, int end)
 634 {
 635     if(!walletModel || !clientModel)
 636         return;
 637     TransactionTableModel *ttm = walletModel->getTransactionTableModel();
 638     qint64 amount = ttm->index(start, TransactionTableModel::Amount, parent)
 639                     .data(Qt::EditRole).toULongLong();
 640     if(!clientModel->inInitialBlockDownload())
 641     {
 642         // On new transaction, make an info balloon
 643         // Unless the initial block download is in progress, to prevent balloon-spam
 644         QString date = ttm->index(start, TransactionTableModel::Date, parent)
 645                         .data().toString();
 646         QString type = ttm->index(start, TransactionTableModel::Type, parent)
 647                         .data().toString();
 648         QString address = ttm->index(start, TransactionTableModel::ToAddress, parent)
 649                         .data().toString();
 650         QIcon icon = qvariant_cast<QIcon>(ttm->index(start,
 651                             TransactionTableModel::ToAddress, parent)
 652                         .data(Qt::DecorationRole));
 653
 654         notificator->notify(Notificator::Information,
 655                             (amount)<0 ? tr("Sent transaction") :
 656                                          tr("Incoming transaction"),
 657                               tr("Date: %1\n"
 658                                  "Amount: %2\n"
 659                                  "Type: %3\n"
 660                                  "Address: %4\n")
 661                               .arg(date)
 662                               .arg(BitcoinUnits::formatWithUnit(walletModel->getOptionsModel()->getDisplayUnit(), amount, true))
 663                               .arg(type)
 664                               .arg(address), icon);
 665     }
 666 }
 667
 668 void BitcoinGUI::gotoOverviewPage()
 669 {
 670     overviewAction->setChecked(true);
 671     centralWidget->setCurrentWidget(overviewPage);
 672
 673     exportAction->setEnabled(false);
 674     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 675 }
 676
 677 void BitcoinGUI::gotoHistoryPage()
 678 {
 679     historyAction->setChecked(true);
 680     centralWidget->setCurrentWidget(transactionsPage);
 681
 682     exportAction->setEnabled(true);
 683     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 684     connect(exportAction, SIGNAL(triggered()), transactionView, SLOT(exportClicked()));
 685 }
 686
 687 void BitcoinGUI::gotoAddressBookPage()
 688 {
 689     addressBookAction->setChecked(true);
 690     centralWidget->setCurrentWidget(addressBookPage);
 691
 692     exportAction->setEnabled(true);
 693     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 694     connect(exportAction, SIGNAL(triggered()), addressBookPage, SLOT(exportClicked()));
 695 }
 696
 697 void BitcoinGUI::gotoReceiveCoinsPage()
 698 {
 699     receiveCoinsAction->setChecked(true);
 700     centralWidget->setCurrentWidget(receiveCoinsPage);
 701
 702     exportAction->setEnabled(true);
 703     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 704     connect(exportAction, SIGNAL(triggered()), receiveCoinsPage, SLOT(exportClicked()));
 705 }
 706
 707 void BitcoinGUI::gotoSendCoinsPage()
 708 {
 709     sendCoinsAction->setChecked(true);
 710     centralWidget->setCurrentWidget(sendCoinsPage);
 711
 712     exportAction->setEnabled(false);
 713     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 714 }
 715
 716 void BitcoinGUI::gotoMessagePage()
 717 {
 718 #ifdef FIRST_CLASS_MESSAGING
 719     messageAction->setChecked(true);
 720     centralWidget->setCurrentWidget(messagePage);
 721
 722     exportAction->setEnabled(false);
 723     disconnect(exportAction, SIGNAL(triggered()), 0, 0);
 724 #else
 725     messagePage->show();
 726     messagePage->setFocus();
 727 #endif
 728 }
 729
 730 void BitcoinGUI::gotoMessagePage(QString addr)
 731 {
 732     gotoMessagePage();
 733     messagePage->setAddress(addr);
 734 }
 735
 736 void BitcoinGUI::dragEnterEvent(QDragEnterEvent *event)
 737 {
 738     // Accept only URIs
 739     if(event->mimeData()->hasUrls())
 740         event->acceptProposedAction();
 741 }
 742
 743 void BitcoinGUI::dropEvent(QDropEvent *event)
 744 {
 745     if(event->mimeData()->hasUrls())
 746     {
 747         gotoSendCoinsPage();
 748         QList<QUrl> uris = event->mimeData()->urls();
 749         foreach(const QUrl &uri, uris)
 750         {
 751             sendCoinsPage->handleURI(uri.toString());
 752         }
 753     }
 754
 755     event->acceptProposedAction();
 756 }
 757
 758 void BitcoinGUI::handleURI(QString strURI)
 759 {
 760     gotoSendCoinsPage();
 761     sendCoinsPage->handleURI(strURI);
 762
 763     if(!isActiveWindow())
 764         activateWindow();
 765
 766     showNormalIfMinimized();
 767 }
 768
 769 void BitcoinGUI::setEncryptionStatus(int status)
 770 {
 771     switch(status)
 772     {
 773     case WalletModel::Unencrypted:
 774         labelEncryptionIcon->hide();
 775         encryptWalletAction->setChecked(false);
 776         changePassphraseAction->setEnabled(false);
 777         encryptWalletAction->setEnabled(true);
 778         break;
 779     case WalletModel::Unlocked:
 780         labelEncryptionIcon->show();
 781         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_open").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 782         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>unlocked</b>"));
 783         encryptWalletAction->setChecked(true);
 784         changePassphraseAction->setEnabled(true);
 785         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 786         break;
 787     case WalletModel::Locked:
 788         labelEncryptionIcon->show();
 789         labelEncryptionIcon->setPixmap(QIcon(":/icons/lock_closed").pixmap(STATUSBAR_ICONSIZE,STATUSBAR_ICONSIZE));
 790         labelEncryptionIcon->setToolTip(tr("Wallet is <b>encrypted</b> and currently <b>locked</b>"));
 791         encryptWalletAction->setChecked(true);
 792         changePassphraseAction->setEnabled(true);
 793         encryptWalletAction->setEnabled(false); // TODO: decrypt currently not supported
 794         break;
 795     }
 796 }
 797
 798 void BitcoinGUI::encryptWallet(bool status)
 799 {
 800     if(!walletModel)
 801         return;
 802     AskPassphraseDialog dlg(status ? AskPassphraseDialog::Encrypt:
 803                                      AskPassphraseDialog::Decrypt, this);
 804     dlg.setModel(walletModel);
 805     dlg.exec();
 806
 807     setEncryptionStatus(walletModel->getEncryptionStatus());
 808 }
 809
 810 void BitcoinGUI::backupWallet()
 811 {
 812     QString saveDir = QDesktopServices::storageLocation(QDesktopServices::DocumentsLocation);
 813     QString filename = QFileDialog::getSaveFileName(this, tr("Backup Wallet"), saveDir, tr("Wallet Data (*.dat)"));
 814     if(!filename.isEmpty()) {
 815         if(!walletModel->backupWallet(filename)) {
 816             QMessageBox::warning(this, tr("Backup Failed"), tr("There was an error trying to save the wallet data to the new location."));
 817         }
 818     }
 819 }
 820
 821 void BitcoinGUI::changePassphrase()
 822 {
 823     AskPassphraseDialog dlg(AskPassphraseDialog::ChangePass, this);
 824     dlg.setModel(walletModel);
 825     dlg.exec();
 826 }
 827
 828 void BitcoinGUI::unlockWallet()
 829 {
 830     if(!walletModel)
 831         return;
 832     // Unlock wallet when requested by wallet model
 833     if(walletModel->getEncryptionStatus() == WalletModel::Locked)
 834     {
 835         AskPassphraseDialog dlg(AskPassphraseDialog::Unlock, this);
 836         dlg.setModel(walletModel);
 837         dlg.exec();
 838     }
 839 }
 840
 841 void BitcoinGUI::showNormalIfMinimized()
 842 {
 843     if(!isVisible()) // Show, if hidden
 844         show();
 845     if(isMinimized()) // Unminimize, if minimized
 846         showNormal();
 847 }